File information storing and searching device and its program recording medium

Abstract

File information storing and searching device reduces the required area for information such as storing large size document data, and so on, and reduces the diposal time for generating and storing the document information index and the index time. The present invention has a morpheme analytic part 1 which extracts a morpheme as the document information structure element from the inputted document information by performing morpheme analysis; an encoding part 2 which encodes the extracted word from the morpheme analytic part; a compressing part 3 which further compresses the morpheme after encoded in the encoding part 2; a data base 4 stores the compressed result from the compressing part 3.

Description

technical field [0001] The present invention relates to a file information storage device and a file information storage method suitable for storing and retrieving large-capacity file information, a file information retrieval device and a file information retrieval method, a recording medium for recording a file information storage program, and a record for recording a file information retrieval program media. Background technique [0002] Conventionally, when storing large-capacity document data in a device for retrieving information stored in a database, there are methods of directly storing document data and methods of compressing and storing document data. [0003] In addition, when performing a search, the data stored in the database is directly searched or the file is searched using an index generated separately instead of directly stored data. [0004] However, in this prior method of directly storing file data in a database, there is a problem of large capacity requ...

AI Technical Summary

Problems solved by technology

However, when storing information such as file data, it takes a certain amount of processing time because data compression and index generation are performed separately.

[0007] In addition, when the file data is compressed and stored, the statistical information in the file data is not fully used, so sometimes the compression is not sufficient

[0008] In this way, in a device that stores information such as large-capacity file data, there are problems of reducing the area required for storage and shortening the processing time when creating an index and storing it.

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